use TTX tools to compile a otf file

[mhjy]

use TTX tools to compile a otf file

[mhjy]

why it didn't ganerate 'abc.otf' file?

[punchcutter]

Your ttx file must have come from a TTF. It depends what's in the file, but if it's not TTF specific (like glyf) then you just need to change the header of the ttx file from

<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="4.43">
to
<ttFont sfntVersion="OTTO" ttLibVersion="4.43">

[punchcutter]

Also, ttx is from fonttools and maintained there: https://github.com/fonttools/fonttools/blob/main/Lib/fontTools/ttx.py

[mhjy]

My steps are:
1, Using FC(FontCreater) build the font file, and export to a otf file ( abc.otf)
2, Using ttx tools dump a .ttx file(abc.ttx) from .otf file. comand: ttx -q -f -t name -t head abc.otf
3, Modified some values in the .ttx file(abc.ttx)
4, Using ttx tools compile the new .ttx file to .otf file. comand: ttx -f -m abc.otf abc.ttx

which step is wrang?

[mhjy]

after the commang 'ttx -q -f -t name -t head abc.otf', the head of .ttx file is :

ttx cann't dump ????

[mhjy]

[punchcutter]

You have it set to TrueType in Outline Format. That will make a TTF even if the extension is otf.

[mhjy]

FC exporting file is not a real otf file, only the extension name is otf??

[punchcutter]

That's what it looks like. If Outline Format is set to TrueType then it should be a TTF font.

[mhjy]

I know. Thanks